package bit1;

import java.util.Arrays;
import java.util.Stack;

public class kk {
    public static void main(String[] args) {
//        String st="askdna;
//        Stack<Character> ch=new Stack<Character>();
        String s="11";
        String t="99";
        char ch1[]=s.toCharArray();
        int count1=ch1.length;
        char ch2[]=t.toCharArray();
        int count2=ch2.length;
        int a=0,b=0;
        for(int i=0;i<count1;i++)
        {
            a=a*10+ch1[i]-'0';
        }
        for(int i=0;i<count2;i++)
        {
            b=b*10+ch2[i]-'0';
        }
        int sum=a*b;
        String st=""+sum;
        System.out.println(st);
    }
}
